Question 5: A wire of length 1.5m and diameter 0.25mm extends by 1.5mm when a load of 120N is placed on the wire. (a) Calculate the Young modulus of the wire. (b) What extension would a load of 85N produce? (c) What is the strain of the wire with a load of 85N?
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5 m, d = 0.25 mm = 2.5×10^-4 m, r = d/2 = 1.25×10^-4 m, F1 = 120 N, ΔL1 = 1.5 mm = 1.5×10^-3 m, F2 = 85 N. Show more…
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